Here's a video of mine supposedly on PeerTube:
https://video.hardlimit.com/w/peBesyAgtzfRWS5FnDQQtn
Well, it's really on Hardlimit, which just outsources some of the playback bandwidth. I can't, as far as I know, play that without going to Hardlimit's web site. I can't even embed it without getting Hardlimit's branding. (Getting to full screen mode on mobile is really hard because their top and bottom banners get in the way of the video controls.) I ought to be able to put that long random key into other PeerTube sites and play it, but that does not seem to be possible. This is not "federation". It's a walled garden with outsourcing.
The video plays fine. I'm now using PeerTube for my technical videos, where I need streaming but the audience is people who find out about it on technical sites.
The federated video crowd needs to 1) get their act together, and 2) get some major forum systems to recognize their URLs as embedded video, as those systems do for Youtube, Twitter, and often Vimeo. That would at least bring them up to where Gyazo is.
The video is a pitch deck. A good one. But it's a pitch deck for something that's not fully usable yet.